Malco Products, Inc., headquartered in Annandale, Minnesota, USA, was founded in 1950 and was a pioneer with its innovative, specialty hand tools for the HVAC trade (Heating, Ventilating and Air Conditioning). Today, Malco is the nation's largest manufacturer of the "tools of the trade" for this industry. Beginning in 1975, Malco also created a specialty tool market in the Exterior Remodeling Industry (Roofing, Siding, Gutter and Downspout).